On Mon, Dec 24, 2018, 7:21 AM Andrey Novoseltsev <novos...@gmail.com wrote:
> On Sunday, 23 December 2018 19:23:27 UTC-7, William wrote: >> >> I didn't have anything to do with the change, but for what it is >> worth, it was definitely not my intention that calling R() twice only >> creates one interface. >> When I designed and implemented the interfaces, my intention was that >> it be possible to create multiple interfaces to multiple copies of R >> (or to any >> other pexpect interface). >> >> -- William >> >> > Well, that was also my impression given how Interface class starts: > > class Interface(WithEqualityById, ParentWithBase): > """ > Interface interface object. > > .. NOTE:: > > Two interfaces compare equal if and only if they are identical > objects (this is a critical constraint so that caching of > representations of objects in interfaces works > correctly). Otherwise they are never equal. > """ > > The change for R() happened since it is no longer a pexpect interface, but > rpy2 one. I have no idea how exactly it works and if it is possible to use > it to create multiple instances or namespaces with it, but perhaps > knowledgeable people should look into it. > When I last looked, I think the rpy2 interface happens entirely at the C library level, and there is only one process involved. It's really unfortunately if somebody just deleted the pexpect interface and replaced it with rpy2. Instead, I would think both should be supported, since they have complementary functionality (pros and cons to each)... Oh well. -- William > -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
